opendir D,"1" or die $!; #把所有txt文件都放到一个叫1的文件夹中
@array=grep(/\.txt/,readdir D);
foreach $list(@array){
    open F, "1/$list" or die $!;
    @load=<F>;
    foreach (@load){ ($s1,$s2)=split/\s+/,$_;push @new,$s2;}
                  }
foreach(@new){print "$_\n";}
